<template>
    <div class="app-container">
      <!-- 工具条 -->
      <div class="tools-div">
        <el-button class="btn-add" size="mini" @click="add">添 加</el-button>
        <el-button class="btn-add" size="mini" @click="syncMenu" >同步菜单</el-button>
        <el-button class="btn-add" size="mini" @click="removeMenu">删除菜单</el-button>
      </div>
      <el-table
        :data="list"
        style="width: 100%;margin-bottom: 20px;"
        row-key="id"
        border
        default-expand-all
        :tree-props="{children: 'children'}">
  
        <el-table-column label="名称" prop="name" width="350"></el-table-column>
        <el-table-column label="类型" width="100">
          <template slot-scope="scope">
            {{ scope.row.type == 'view' ? '链接' : scope.row.type == 'click' ? '事件' : '' }}
          </template>
        </el-table-column>
        <el-table-column label="菜单URL" prop="url" ></el-table-column>
        <el-table-column label="菜单KEY" prop="meunKey"  width="130"></el-table-column>
        <el-table-column label="排序号" prop="sort"  width="70"></el-table-column>
        <el-table-column label="操作" width="170" align="center">
          <template slot-scope="scope">
            <el-button v-if="scope.row.parentId > 0" type="text" size="mini" @click="edit(scope.row.id)">修改</el-button>
            <el-button v-if="scope.row.parentId > 0" type="text" size="mini" @click="removeDataById(scope.row.id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
  
      <el-dialog title="添加/修改" :visible.sync="dialogVisible" width="40%" >
        <el-form ref="flashPromotionForm" label-width="150px" size="small" style="padding-right: 40px;">
  
          <el-form-item label="选择一级菜单">
            <el-select
              v-model="menu.parentId"
              placeholder="请选择">
              <el-option
                v-for="item in list"
                :key="item.id"
                :label="item.name"
                :value="item.id"/>
            </el-select>
          </el-form-item>
          <el-form-item label="菜单名称">
            <el-input v-model="menu.name"/>
          </el-form-item>
          <el-form-item label="菜单类型">
            <el-radio-group v-model="menu.type">
              <el-radio label="view">链接</el-radio>
              <el-radio label="click">事件</el-radio>
            </el-radio-group>
          </el-form-item>
          <el-form-item v-if="menu.type == 'view'" label="链接">
            <el-input v-model="menu.url"/>
          </el-form-item>
          <el-form-item v-if="menu.type == 'click'" label="菜单KEY">
            <el-input v-model="menu.meunKey"/>
          </el-form-item>
          <el-form-item label="排序">
            <el-input v-model="menu.sort"/>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="dialogVisible = false" size="small">取 消</el-button>
          <el-button type="primary" @click="saveOrUpdate()" size="small">确 定</el-button>
        </span>
      </el-dialog>
    </div>
  </template>
  <script>
  import menuApi from '@/api/wechat/menu'
  const defaultForm = {
    id: null,
    parentId: 1,
    name: '',
    nameId: null,
    sort: 1,
    type: 'view',
    meunKey: '',
    url: ''
  }
  export default {
  
    // 定义数据
    data() {
      return {
        list: [],
        dialogVisible: false,
        menu: defaultForm,
        saveBtnDisabled: false
      }
    },
  
    // 当页面加载时获取数据
    created() {
      this.fetchData()
    },
  
    methods: {
      // 调用api层获取数据库中的数据
      fetchData() {
        console.log('加载列表')
        menuApi.findMenuInfo().then(response => {
          this.list = response.data
          console.log(this.list)
        })
      },
  
      // 根据id删除数据
      removeDataById(id) {
        // debugger
        this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => { // promise
          // 点击确定，远程调用ajax
          return menuApi.removeById(id)
        }).then((response) => {
          this.fetchData(this.page)
          this.$message.success(response.message || '删除成功')
        }).catch(() => {
          this.$message.info('取消删除')
        })
      },
  
      // -------------
      add() {
        this.dialogVisible = true
        this.menu = Object.assign({}, defaultForm)
      },
  
      edit(id) {
        this.dialogVisible = true
        this.fetchDataById(id)
      },
  
      fetchDataById(id) {
        menuApi.getById(id).then(response => {
          this.menu = response.data
        })
      },
  
      saveOrUpdate() {
        this.saveBtnDisabled = true // 防止表单重复提交
  
        if (!this.menu.id) {
          this.saveData()
        } else {
          this.updateData()
        }
      },
  
      // 新增
      saveData() {
        menuApi.save(this.menu).then(response => {
          this.$message.success(response.message || '操作成功')
          this.dialogVisible = false
          this.fetchData(this.page)
        })
      },
  
      // 根据id更新记录
      updateData() {
        menuApi.updateById(this.menu).then(response => {
          this.$message.success(response.message || '操作成功')
          this.dialogVisible = false
          this.fetchData(this.page)
        })
      },

      syncMenu() {
        this.$confirm('你确定上传菜单吗, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          return menuApi.syncMenu()
        }).then((response) => {
          this.$message.success(response.message)
        }).catch(error => {
          console.log('error', error)
          if (error === 'cancel') {
            this.$message.info('取消上传')
          }
        })
      },

      removeMenu() {
        menuApi.removeMenu().then(response => {
          this.$message.success('菜单已删除')
        })
      }
    }
  }
  </script>